Study on Preparation of Low Hydration Thermal Polycarboxylate Superplasticizer by Low Temperature Esterification

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Guo, Xingqi^1

KZJ New Materials Group Co., Ltd., Xiamen, Fujian

361101, China^1

关键词: Acrylic acids;    Hydration heat;    Low temperatures;    Phosphate group;    Polycarboxylate superplasticizer;    Polyoxyethylene ether;    Unsaturated monomer;    Water reduction;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/5/052001/pdf
DOI  :  10.1088/1757-899X/392/5/052001

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A low hydration thermal polycarboxylate superplasticizer (P-DR) is obtained by unsaturated monomer (P1) with isoprenol polyoxyethylene ether. P1 is obtained by esterification of acrylic acid with (2-Hydroxyphenyl)phosphoric acid at 70°C, having a benzene ring and a phosphate group. The experimental results show that the prepared P-DR has a higher water reduction rate and can significantly reduce the 1d hydration heat of cement.